region-test.html

<script>
var settings = {
        exclude: ["US"],
        regionselector: "example.com/regionselector",
        homepages: {
            "US": "example.com",
            "DE": "example.com/de",
            "FR": "example.com/fr",
            "EU": "example.com/eu"
        }
    },
    tests = {
        test00: {
            "geoip_detected": "US",
            "cookied_to": null,
            "landed_on": "US",
            "result": "no redirect"
        },
        test01: {
            "geoip_detected": "US",
            "cookied_to": null,
            "landed_on": "FR",
            "result": "no redirect"
        },
        test02: {
            "geoip_detected": "DE",
            "cookied_to": "DE",
            "landed_on": "US",
            "result": "redirect to cookied home"
        },
        test03: {
            "geoip_detected": "FR",
            "cookied_to": "FR",
            "landed_on": "US",
            "result": "redirect to cookied home"
        },
        test04: {
            "geoip_detected": "FR",
            "cookied_to": null,
            "landed_on": "FR",
            "result": "no redirect"
        },
        test05: {
            "geoip_detected": "FR",
            "cookied_to": null,
            "landed_on": "US",
            "result": "redirect to region selector"
        },
        test06: {
            "geoip_detected": null,
            "cookied_to": null,
            "landed_on": "EU",
            "result": "redirect to region selector"
        },
        test07: {
            "geoip_detected": "US",
            "cookied_to": "FR",
            "landed_on": "US",
            "result": "redirect to cookied home"
        },
        test08: {
            "geoip_detected": "FR",
            "cookied_to": "FR",
            "landed_on": "FR",
            "result": "no redirect"
        },
        test09: {
            "geoip_detected": null,
            "cookied_to": "FR",
            "landed_on": "FR",
            "result": "no redirect"
        },
        test10: {
            "geoip_detected": null,
            "cookied_to": "EU",
            "landed_on": "FR",
            "result": "redirect to cookied home"
        },
        test11: {
            "geoip_detected": null,
            "cookied_to": null,
            "landed_on": null,
            "result": "no redirect"
        },
        test12: {
            "geoip_detected": null,
            "cookied_to": "EU",
            "landed_on": null,
            "result": "redirect to cookied home"
        },
        test13: {
            "geoip_detected": "US",
            "cookied_to": "EU",
            "landed_on": null,
            "result": "no redirect"
        },
        test14: {
            "geoip_detected": "EU",
            "cookied_to": "EU",
            "landed_on": null,
            "result": "no redirect"
        },
        test15: {
            "geoip_detected": "FR",
            "cookied_to": "EU",
            "landed_on": "EU",
            "result": "no redirect"
        },
        test16: {
            "geoip_detected": "FR",
            "cookied_to": null,
            "landed_on": null,
            "result": "no redirect"
        }
    };

function validate(test) {
    if (test.geoip_detected && test.cookied_to != test.landed_on) {
        if (test.cookied_to) {
            if (test.landed_on) {
                return "redirect to cookied home";
            }
        } else if (test.geoip_detected != test.landed_on && settings.exclude.indexOf(test.geoip_detected) == -1) {
            return "redirect to region selector";
        }
    } else {
        if (test.cookied_to || !test.landed_on && test.cookied_to !== false) {
            if (test.cookied_to != test.landed_on) {   
                return "redirect to cookied home";
            }
        } else if (test.landed_on) {     
            return "redirect to region selector";
        }
    }
    return "no redirect";
}

for (var testName in tests) {
    var test = tests[testName],
        result = validate(test);
    if (test.result && test.result != result) {
        document.write(testName + " failed! Expected '" + test.result + "' but got '" + result + "'<br />");
    } else {
        document.write(testName + " passed<br />");
    }
}

</script>